import sys

sys.setrecursionlimit(10 ** 8)

input = sys.stdin.readline


def main():
    X = int(input())
    if 400 <= X <= 599:
        print(8)
    elif 600 <= X <= 799:
        print(7)
    elif 800 <= X <= 999:
        print(6)
    elif 1000 <= X <= 1199:
        print(5)
    elif 1200 <= X <= 1399:
        print(4)
    elif 1400 <= X <= 1599:
        print(3)
    elif 1600 <= X <= 1799:
        print(2)
    else:
        print(1)


    

if __name__ == '__main__':
    main()
 import sys sys sys.setrecursionlimit(10 ** 8) sys.setrecursionlimit sys setrecursionlimit 10 ** 8 10 8 input = sys.stdin.readline input sys.stdin.readline sys.stdin sys stdin readline def main():
    X = int(input())
    if 400 <= X <= 599:
        print(8)
    elif 600 <= X <= 799:
        print(7)
    elif 800 <= X <= 999:
        print(6)
    elif 1000 <= X <= 1199:
        print(5)
    elif 1200 <= X <= 1399:
        print(4)
    elif 1400 <= X <= 1599:
        print(3)
    elif 1600 <= X <= 1799:
        print(2)
    else:
        print(1)


     main X = int(input()) X int(input()) int input() input if 400 <= X <= 599:
        print(8)
    elif 600 <= X <= 799:
        print(7)
    elif 800 <= X <= 999:
        print(6)
    elif 1000 <= X <= 1199:
        print(5)
    elif 1200 <= X <= 1399:
        print(4)
    elif 1400 <= X <= 1599:
        print(3)
    elif 1600 <= X <= 1799:
        print(2)
    else:
        print(1)


     400 <= X <= 599 400 <= X 400 X 599 print(8) print 8 elif 600 <= X <= 799:
        print(7)
     600 <= X <= 799 600 <= X 600 X 799 print(7) print 7 elif 800 <= X <= 999:
        print(6)
     800 <= X <= 999 800 <= X 800 X 999 print(6) print 6 elif 1000 <= X <= 1199:
        print(5)
     1000 <= X <= 1199 1000 <= X 1000 X 1199 print(5) print 5 elif 1200 <= X <= 1399:
        print(4)
     1200 <= X <= 1399 1200 <= X 1200 X 1399 print(4) print 4 elif 1400 <= X <= 1599:
        print(3)
     1400 <= X <= 1599 1400 <= X 1400 X 1599 print(3) print 3 elif 1600 <= X <= 1799:
        print(2)
     1600 <= X <= 1799 1600 <= X 1600 X 1799 print(2) print 2 print(1) print 1 if __name__ == '__main__':
    main() __name__ == '__main__' __name__ '__main__' main() main input = sys.stdin.readline sys.stdin.readline input def main():
    X = int(input())
    if 400 <= X <= 599:
        print(8)
    elif 600 <= X <= 799:
        print(7)
    elif 800 <= X <= 999:
        print(6)
    elif 1000 <= X <= 1199:
        print(5)
    elif 1200 <= X <= 1399:
        print(4)
    elif 1400 <= X <= 1599:
        print(3)
    elif 1600 <= X <= 1799:
        print(2)
    else:
        print(1)


     def main():
    X = int(input())
    if 400 <= X <= 599:
        print(8)
    elif 600 <= X <= 799:
        print(7)
    elif 800 <= X <= 999:
        print(6)
    elif 1000 <= X <= 1199:
        print(5)
    elif 1200 <= X <= 1399:
        print(4)
    elif 1400 <= X <= 1599:
        print(3)
    elif 1600 <= X <= 1799:
        print(2)
    else:
        print(1)


     main
import sys

sys.setrecursionlimit(10 ** 8)

input = sys.stdin.readline


def main():
    X = int(input())
    if 400 <= X <= 599:
        print(8)
    elif 600 <= X <= 799:
        print(7)
    elif 800 <= X <= 999:
        print(6)
    elif 1000 <= X <= 1199:
        print(5)
    elif 1200 <= X <= 1399:
        print(4)
    elif 1400 <= X <= 1599:
        print(3)
    elif 1600 <= X <= 1799:
        print(2)
    else:
        print(1)


    

if __name__ == '__main__':
    main()

